diff --git a/c-struct.cabal b/c-struct.cabal
--- a/c-struct.cabal
+++ b/c-struct.cabal
@@ -5,7 +5,7 @@
 -- see: https://github.com/sol/hpack
 
 name:           c-struct
-version:        0.1.1.0
+version:        0.1.1.1
 synopsis:       To make a wrapper for struct of C language
 description:    Please see the README on GitHub at <https://github.com/YoshikuniJujo/c-struct#readme>
 category:       Foreign
diff --git a/src/Foreign/C/Struct.hs b/src/Foreign/C/Struct.hs
--- a/src/Foreign/C/Struct.hs
+++ b/src/Foreign/C/Struct.hs
@@ -5,7 +5,7 @@
 
 module Foreign.C.Struct (
 	-- * STRUCT
-	struct, StrName, StrSize,
+	struct, StrName, StrSize, StrAlgn,
 	MemName, MemType, MemPeek, MemPoke, DerivClass,
 	-- * STRUCT WITH PRIMITIVE MONAD
 	structPrim, FunCopy, FunFree ) where